Window-wiper.



H. WIDEN.

WINDOW WIPER.

APPLICATION FILED MAR. 18, 1916.

Patented Sept. 19, 1916.

q/W twzoo WINDO'W-WIPEB.

Application filed March 18, 1916.

T 0 all whom it may concern:

Be it known that I, HELMFRED WIDEN, a citizen of the United States of America, residing at WVoroester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in VVindow-VVipers, of which the following is a specification.

This invention relates to a window wiping device for removing rain, snow or moisture from the windows of electric cars, windshields of automobiles, the front windows of engine cabs, or any other place where it is necessary to maintain an unobstructed sight opening through which the operator may see ahead in wet or stormy weather.

The object of the invention is to provide an improved device for serving the purpose above set forth and constructed in such manner as to swing in the arc of a circle over the surface from which the moisture is to be removed. The device is so constructed as to engage the glass of the window when upon the down stroke and to be moved out of engagement with the glass upon the up stroke, all as will be hereinafter set forth.

In the accompanying drawing Figure 1 is a horizontal, sectional view upon line 1-1 of Fig. 2. Fig. 2 is a side view with the near side of the casing broken away; and Fig. 3 is a vertical section upon line 33 of Fig. 1.

Like numerals designate corresponding figures in all of the figures of the drawing.

Referring to the drawing, 5 designates the glass of the window from a portion of which snow, rain or moisture is to be removed. In applying the device an opening 6 is formed through the glass. The apparatus forming the subject matter of the present invention embodies a casing comprising cover plates 7 and 8 which may be drawntoward each other by screws 9. These cover plates have flanges 10 which, when the plates are drawn toward each other, bind the entire device in position upon the glass. Packing rings 11 and 12 of felt or other suitable flexible material are disposed between the flanges and the glass to avpid danger of breaking the latter and to prevent the structure from slipping out of its adjusted position under the vibration to which it is subjected. An oscillatory head 13 is mounted within the housing provided by plates 7 and 8 and this head is channeled along its opposite Specification of Letters 2atent.

Patented Sept. 19, 1916.

Serial No. 25,096.

sides as indicated at 14 and 15. An arm 16 has its rear portion disposed within the channel 14 and is pivoted upon a pin 17. This arm is provided with a tail 18 which extends across the rear portion of the head and through a slot 19 formed in said head in position to be engaged by the rear end of a pivoted block 20. This block ispivoted upon pin 21 and carries a tongue 22 which overlaps a corresponding tongue 23 carried by the rear end of an arm 24. The rear end of the arm 24 and the block 20 lie in the channel 15 and the rear end of the arm 24 is pivoted within said channel by means of a pin 25. A spring 26 is secured to the head 13 and normally tends to move the front end of the arm 16 away from said head. Scrapers 27, preferably formed of rubber, are mounted at the front ends of the arms 16 and 24 and when these scrapers are forced to contact with the surface of the glass and drawn downwardly thereover, the glass will be wiped clean and all snow, rain or moisture will be removed therefrom, leaving a clear sight opening through which the operator may see the road bed ahead. The scrapers 27 may, if desired, be mounted in holders 28 and these holders may be pivoted .by pins 29 to the outer ends of the arms 16 and 24. Such a structure as this permits a slight rocking of the scrapers with relation to the arms 16 and 24, so asto insure a. true seating of the scrapers throughout their length, upon the surface of the glass. A handle 30 is carried by the holder 28 and provides means for imparting a swinging movement to the structure as a whole.

In operation it is desirable to have the scrapers. contact with the glass upon the downward stroke of the cleaner, because to shove snow or moisture upwardly ahead of the scrapers upon the up-stroke of the cleaner would merely bank up above the sight opening snow and water which would immediately run down over the sight opening again and obstruct the operators vision; but by virtue of the construction herein described, it will be seen that normally the scrapers lie out of contact with the glass, because the spring 26 tends to press the outer portion of arm 16 away from the glass. This moves the tail 18 inwardly to cause it to thrust against the rear end of the pivoted block 20and to slightly rock said block upon its pivot. The forward end of this block acts upon tongue 23 of arm 24 to move said arm away from the glass. With the parts in the position just described, the operator, by grasping the handle 30, swings the cleaner upon the arc of a circle until the arms stand in nearly a vertical position af'er which he thrusts against handle 30 to press the strip 27 nearest said handle into engagement with the surface of the glass. This moves the tongue 23 outwardly and through the block 20 and the tail 18 moves the arm 16 toward the glass to bring the outer scraper into engagement with the opposite side of the glass. The entire structure is then swung downwardly upon the arc of a circle, it being understood that the head 13 is journaled in the housing provided by the cover plates 7 and 8., This downward movement results, as will be clear, in removing the moisture from the glass. A screw 31 is threaded in the tongue 22 and bears against the tongue 23 and provides means for adj usting the degree of tension with which the outer scraper may be forced against the glass.

Drainage openings 32 are formed through the flexible material at the outside face of the glass and provide means for draining from the interior of the housing, any moisture which may enter the same.

lVhile theelements shown and described are well adapted to serve the purposes for which they are intended, it is to be understood that the invention is not limited to the precise construction set forth, but that it includes within its purview whatever modifications fairly come within the spirit of the ap ended claims.

aving thus described my invention what I claim is:

1. A device of the character described, comprising a pair of cover plates constituting a housing,- a head journaled in said housing, a pair of arms pivoted to said head for movement transversely of the glass to be cleaned, scrapers carried by said arms and connections between said arms whereby the movement of one of said arms toward the glass causes the movement of the other of said arms toward the glass.

2. A device of the character described, comprising a pair of cover plates constitutconnections between said, arms whereby the movement of one of said arms toward the glass causes the movement of the other of said arms toward the glass, and spring means normally tending to hold one of said arms away from the glass. p

3. A device of the character described, comprising a pair of cover plates constituting a housing, a head journaled in said housing, a pair of arms pivoted to said head for movement transversel of the glass to be cleaned, scrapers carried by said arms and connections between said arms whereby the movement of one of said arms toward the glass causes the movement of the other of said. arms toward the glass, and means for drawing said cover plates toward each other.

.4. A device of the character described, comprising a pair of cover plates constituting a housing, a head journaled in said housing, said head having slots formed along its sides, a pair of arms, means for pivoting the rear ends of said arms in said slots and a pivoted block pivoted in the rear end of one of said slots at one side of said head, one end of said block being engaged by one of said arms-and the other end of said block being engaged by the other of said arms.

5. A device of the character described, comprising a pair of cover plates constituting a housing, a head journaled in said housing, said head having slots formed along its sides, a pair of arms, means for pivoting the rear ends of said arms in said slots and a pivoted block pivoted in the rear end of one of said slots at one side of said head, one end of said block being engaged by one of said arms and the other end of said block being engaged by the other ofsaid arms, and

HELMFRED 'WIDEN.

Witnesses MAYenL E. Comm, FRANK LEHBERG. 

